Furnace-grate structure



Apr. 24, 1923.

T. ABEL FURNACE GRATE STRUCTURE Filed Nov 29.

Patented Apr. 24, 19213.

main st res PATENT -#=rc11-:

rnnononn ABEL, or CLEVELAND, 011 10.

FURN'AGE-GRATE STRUCTURE.

Application 'filed November. 29, 1921. Serial No. 518,500.

To all whom it may con-corn I Be it known that 1,-THE0D0RE AABEL, a citizen of the Un ted States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certainv new and useful improvements in Furnace-"Grate Structures, of which the followingis a specification.

My invention relates to improvements in furnace grate structures, the improved grate relating to th'at'class or type in Whichth'e grate proper is rem'ov'ably and rotatably m'ount'ed and is adapted to be given a horiinitially placed and maintained so that com-- .bustio'n may be supported atfall times over and about the same through the annular. draft 'or grate portions'of the grate above" referred to. r

A still further object is the provision 'of'an inip'ro'vedshaker grate and grate mounting adapted to be readily inserted in or moved from the ash pit portion of any ordinary furnace through the usual door opening to the same.

A still further object is the provision as improved dumping closure bottom for the central ash receiving receptacle pivotally' supported on a combined grate dumping and shaker handle extending forwardly to the door leading to the ash pit whereby, if de sired, the ashes or clinkers arising from the combustion of fuel may be readily deposited within the'ash'pit and removed therefrom or the shaker grate be given a horizontal re ciprocatory or shaking movement to discharge the ashes through the annulargrate portion thereof for the establishment or more perfect combustion.

\Viththe above mentioned and other ends in view, the invention consists in the novel construction, arrangement, and combination of parts, hereinafter described, illustrated in The primary object of the invention is to I one of its embodiments in the accompanying.

drawingspand particularly pointed out in the appended claims. 7

Referring to the drawings, forming a part of this specification,Figure l is a top plan I view-partly in horizontal section, of the ash pit and iire boxportions of an ordinary'rtun,

- nace equipped withv a egrate structure con-v structed "in accordance With this invention. F 1 g. 2, a central vertical-sectional vicw' o-f receptacle being filled with ashes and covered with fuel to illustrate "the combustion -sup-. porting draft :over and in the same Similar numerals of reference designate like parts throughout all the :figures of'the drawings.

The improved grate structure isradapted;

to be readily inserted in or removed from the ordinary ash pit portion 0f any ordinary furnace.

In the present instance I have shown any improved grate structure remova'bly nrounted in an ash pit 1, embodying parallelexs tending sidewvalls 1, extending from the door side 1", and terminating in a roundedportion 1. The casing forming the ash pit is surmounted by a round fire box '2.

The above "described furnace parts and features of construction may be of any suit able and convenient form, and forming no part of this invention needvnot he described I in detail.

Referring to the improvedgrate structure,

it will be seen that I :providelan improved supporting member 3, adapted *to bevreadily inserted in andremoved from the "upper portio'nrof the ash pit portion er the furnace and being also adapted to removably receive and carry the shaker grate, proper, hereinafter referred to. member3, may be ofany suitable "andron: venienjt form, and, in the present instance, comprises side bars 3, terminatingin a ring shaped grate receiving and supporting porti'on 3*, said side bars 3'b'eing provided at their front with a transverse supporting bar 3 terminating in supporting lugs '3. In the pr'esentjlnstance, theshaker grate supportls provided with an int'ei-medlate bar '3 on circular shaped,

The main supporting" the same, the central ash. receiving Well 01.

and it will thus be seen that the support as a Whole is of ope-n formation. As a means of insertlng and removing the support, the ring portion 1s provided With lugs 3 adapted to be initially inserted in bearing recesses 1, in the walls of the ash pit, and as a means of supporting the front ends of the,

support suitable lug bolts 1 may be inserted in suitable openings nearthe front ends of the side walls 1, and connected by means of nuts 1 adapted to engage beneath the lugs 3 of the supporting frame.

The shaker grate receiving and supporting portion 3, is provided with spaced oif-set flanges 3 the latter being adaptedto receive and slidably support the marginal edges of the shaker grate to be now described.

The improved shaker grate comprises inner and outer rings l and 4:, respectively, connected by spaced radially extending grate bars 4", forming a series of draft openings 4, and which draft bars and openings as a whole form an annular combustion supporting draft passage, the inner ring 4 beingimperforate throughout and being in the form of a cylindrical wall extended downwardly formingadepending ash receiving vessel or well, as shown most clearly in Fig. 2 of the drawin s.

The receptacle or well is provided at its base with aclosure bottom e adapted to receive and normally support the ashes. clinkers and other products of combustion, the bottom 4 being also of imperforate formation and the central portion of the fuel upon the grate and within the fire pot being adapted to be supported immediately above the receptacle forming walls 4.

As a means of removably supporting the closure bottom 4 within. the receptacle l, and particularly as a means of operating such'closnre bottom and horizontally reciprocating the shaker grate as desired, bearing openings are formed within the lower portions of the walls of the receptacle, and the I closure bottom 4?, isprovided with a bearing lug 4, to removably receive and contain a bar or shaft 5, which forms a pivot support for the closure bottom and extends forwardly beneath the shaker grate and grate:

supporting member to the door side of the ash pit where such combined grate dumping. and shakerhandle may be operated to either dump the ashes and clinkers, or to shake the through the annular draft or grate portion tacle.

signature.

of the grate in passing upwardly over and through the fuel will create a draft over the central ash receiving receptacle and within and over the supported fuel substantially as indicated by the arrows in Fig. 2 of the drawings.

From the foregoing description, taken in connection with the accompanying drawings, the operation and advantages of my invention will be readily understood.

Having thus described one of the embodiments of my invention, without having attempted to set forth all the forms in which it may be made, or all the modes of its use, what I claim and desire to secure by Letters Patent, is, I v

7.. In a furnace grate structure, a shaker grate comprising an annular grate portion and a normally closed ash receiving recep- 2. A grate structure, comprising a supporting member, including a ring shaped opening and a surrounding ring having spaced supporting flanges, a shaker grate removably mounted therein and supported on said flanges, said grate being provided with an annular horizontal grating and a central depending ash receiving receptacle including an imperforate cylindrical side wall, a closure bottom in said receptacle, and a bar extending through said receptacle forming a pivot support for said bottom and projecting forwardly beneath said shaker grate whereby the latter may be rotatably reciprocated or said bottom tilted to dump the contents of said receptacle.

8. A grate structure, comprising a removable supporting horizontally connected member of open formation including a posite said hinged connection, a shaker grate removably mounted in said opening and sup ported on said spaced flanges, said shaker grate being provided with an annular grate ing anda central depending ash receiving receptacle, a closure bottom of imperforate formation for said receptacle, and a bar extending from said receptacle forming a pivot support for said bottom and extending forwardly beneath said shaker grate whereby the latter may be reciprocated or said bottom tilted to dump the contents of said receptacle, and said hingedly connected member being inserted or removed or lowered or elevated at the front relative to said hinged connection. I

In testimony whereof I have affixed my THEODORE ABEL. 

